A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5905-00-925-1618
NSN 5985-00-828-0615
NSN 5985-01-445-6572
NSN 5945-01-178-9024
NSN 5996-00-792-3445
NSN 6610-01-624-5664
NSN 6220-00-960-7591
NSN 5905-01-431-3750
NSN 5985-01-268-1804
NSN 6320-01-418-6681
NSN 6645-01-377-7866
NSN 5996-00-199-0073